package gateway.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

//@Component
public class AccessFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        System.out.println("AccessFilter.filter()");
        ServerHttpRequest request=exchange.getRequest();
        ServerHttpResponse response=exchange.getResponse();

        String user=request.getQueryParams().getFirst("user");

        System.out.println(user);
        String path=request.getURI().getPath();

        AntPathMatcher antPathMatcher=new AntPathMatcher();
        if(antPathMatcher.match("/ums/user/**",path)){

            if(user==null||"".equals(user.trim())||!"abc".equals(user)){
                response.setStatusCode(HttpStatus.UNAUTHORIZED);
                return response.setComplete();
            }

        }

        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
